Morristown, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Morristown, a town in Corson County, South Dakota.
Today
46°F
Mostly Sunny
Mostly sunny. High near 46, with temperatures falling to around 39 in the afternoon. North northwest wind 7 to 14 mph, with gusts as high as 24 mph.
7-day forecast for Morristown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 46°F | Mostly Sunny | 7 to 14 mph NNW | 1% |
| Tonight | 27°F | Partly Cloudy | 6 to 9 mph NNW | 0% |
| Wednesday | 50°F | Partly Sunny | 9 to 16 mph NNW | 0% |
| Wednesday Night | 28°F | Mostly Cloudy | 5 to 10 mph NNW | 0% |
| Thursday | 49°F | Mostly Sunny | 5 mph NE | 0% |
| Thursday Night | 26°F | Partly Cloudy | 3 mph SSE | 0% |
| Friday | 53°F | Mostly Sunny | 2 to 7 mph WSW | 0% |
| Friday Night | 32°F | Partly Cloudy | 2 to 8 mph WSW | 1% |
| Saturday | 58°F | Sunny | 8 to 21 mph WNW | 1% |
| Saturday Night | 32°F | Mostly Clear | 3 to 7 mph W | 0% |
| Sunday | 61°F | Sunny | 3 to 10 mph SSW | 0% |
| Sunday Night | 39°F | Mostly Clear | 8 to 14 mph WSW | 0% |
| Monday | 59°F | Sunny | 6 to 20 mph WNW | 0% |
| Monday Night | 34°F | Partly Cloudy | 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Morristown (45.939, -101.719). Updated through the day.
Growing snapshot for Morristown
Last spring frost
May 20
First fall frost
Sep 23
Growing season
124 days
Hardiness zone
4b
More local growing data for Morristown: nearby ZIP 57645 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Pretty Rock, Nd (19.7 mi from Morristown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.